chem test

Question 1

oxide

Answer 1

compound formed when an element reacts with oxygen

Question 2

sources of SO2: natural

Answer 2

• hot springs

Question 3

sources of SO2: human-made

Answer 3

• coal- fired power plants
• automobiles

Question 4

sources of NOx: natural

Answer 4

-forest fires

Question 5

sources of NOx: human-made

Answer 5

-burning of crops
- automobiles

Question 6

acid

Answer 6

• turns blue litmus paper red
• tastes sour

Question 7

base

Answer 7

• corrosive
• turns red litmus paper blue

Question 8

neutral

Answer 8

• does not change red or blue litmus

Question 9

wet deposition

Answer 9

emissions that contact liquid or solid water dissolve

Question 10

dry deposition

Answer 10

gases and particulate matter that is absorbed by the earth’s surface

Question 11

dissociation

Answer 11

separation of a chemical substance into its individual ions in a solution

Question 12

molecular compounds

Answer 12

high solubility-disperse
low solubility- no effect
all non-metals

Question 13

ionic compounds

Answer 13

dissolve at least a little in water
metal + non-metal

Question 14

ionization

Answer 14

process acids undergo in solution (they become ions)

Question 15

conjugate base

Answer 15

acid-loses proton-conjugate base

Question 16

conjugate acid

Answer 16

base-gains protons-conjugate acid

Question 17

acid rain has a pH of

Answer 17

5.6 or lower

Question 18

factors affecting acid deposition

Answer 18

human activity, forest fires, proximity to a large city

Question 19

qualitative

Answer 19

non-numerical data like interviews

Question 20

combustion

Answer 20

“to burn”

Question 21

quantitative

Answer 21

research focuses on using numerical data such as surveys or experiments

Question 22

titration

Answer 22

experimental design used to determine the concentration of a substance in solution

Question 23

scrubbing

Answer 23

removes one gas from a mixture of gases

Question 24

.

Question 25

aromatics

Answer 25

hydrocarbons that are arranged in a ring

Question 26

functional groups

Answer 26

made up of other elements such as oxygen, nitrogen and halogens

Question 27

DDT

Answer 27

used for mosquito control

Question 28

PCBs

Answer 28

used in some older electric transformers

Question 29

toxaphene

Answer 29

used as a pesticide

Question 30

.

Question 31

alcohols

Answer 31

group of organic molecules with a hydroxyl group

Question 32

esters are an important part of

Answer 32

food and cosmetics industry

Question 33

polyesters

Answer 33

are polymers containing many ester functional groups

Question 34

VOCs

Answer 34

compounds that vaporize into a gas in the air

Question 35

pesticides

Answer 35

chemicals designed to kill or limit the growth of pests